Toothbrush



FIG. 1 is a front elevation view showing a toothbrush of my new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a right elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view, as seen from the bottom, front left side, thereof; and,

FIG. 8 is a back perspective view, as seen from the bottom, back right side, thereof.

The bristles of the toothbrush are shown in broken lines for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a toothbrush, as shown and described. 